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Finding the Fourth Proportional to 43,404.60, 65,106.90 and 13,822.20

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Solution

The fourth proportional to 43,404.60, 65,106.90 and 13,822.20 is: 20,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,404.60 : 65,106.90 = 13,822.20 : x
  2. Step 2: Convert to fraction form
    43,404.60/65,106.90 = 13,822.20/x
  3. Step 3: Cross multiply
    43,404.60x = 65,106.90 × 13,822.20
  4. Step 4: Simplify right side
    43,404.60x = 899,920,593.18
  5. Step 5: Solve for x
    x = 899,920,593.18/43,404.60
  6. Step 6: Final answer
    x = 20,733.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.